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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.scheduling.timer

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.springframework.scheduling.timer .TimerTaskExecutor

TimerTaskExecutor
public class TimerTaskExecutor implements SchedulingTaskExecutor,InitializingBean,DisposableBean(Code)
	org.springframework.core.task.TaskExecutor implementation that uses a single Timer for executing all tasks, effectively resulting in serialized asynchronous execution on a single thread. author: Juergen Hoeller since: 2.0 See Also: java.util.Timer

Field Summary
final protected Log	logger The shared Log instance.

Constructor Summary
public	TimerTaskExecutor() Create a new TimerTaskExecutor that needs to be further configured and initialized.
public	TimerTaskExecutor(Timer timer) Create a new TimerTaskExecutor for the given Timer .

Method Summary
public void	afterPropertiesSet()
protected Timer	createTimer() Create a new Timer instance.
public void	destroy() Cancel the Timer on bean factory shutdown, stopping all scheduled tasks.
public void	execute(Runnable task) Schedules the given Runnable on this executor's Timer instance, wrapping it in a DelegatingTimerTask .
public boolean	prefersShortLivedTasks() This task executor prefers short-lived work units.
public void	setDelay(int delay) Set the delay to use for scheduling tasks passed into the `execute` method.
public void	setTimer(Timer timer) Set the Timer to use for this TimerTaskExecutor , for example a shared Timer instance defined by a TimerFactoryBean .

Field Detail

logger
final protected Log logger(Code)
	The shared Log instance.

Constructor Detail

TimerTaskExecutor
public TimerTaskExecutor()(Code)
	Create a new TimerTaskExecutor that needs to be further configured and initialized. See Also: TimerTaskExecutor.setTimer See Also: TimerTaskExecutor.afterPropertiesSet

TimerTaskExecutor
public TimerTaskExecutor(Timer timer)(Code)
	Create a new TimerTaskExecutor for the given Timer . Parameters: timer - the Timer to wrap throws: IllegalArgumentException - if the supplied Timer is `null`

Method Detail

afterPropertiesSet
public void afterPropertiesSet()(Code)

createTimer

protected Timer createTimer()(Code)

Create a new Timer instance. Called by afterPropertiesSet if no Timer has been specified explicitly.

Default implementation creates a plain daemon Timer .

If overridden, subclasses must take care to ensure that a non-null Timer is returned from the execution of this method. a new Timer instance
See Also: TimerTaskExecutor.afterPropertiesSet
See Also: java.util.Timer.Timer(boolean)

destroy
public void destroy()(Code)
	Cancel the Timer on bean factory shutdown, stopping all scheduled tasks. See Also: java.util.Timer.cancel

execute
public void execute(Runnable task)(Code)
	Schedules the given Runnable on this executor's Timer instance, wrapping it in a DelegatingTimerTask . Parameters: task - the task to be executed throws: IllegalArgumentException - if the supplied Runnable task is `null`,or if the Timer encapsulated by this instance has not been set, orif the TimerTaskExecutor.setDelay(int) configured delay is negative.

prefersShortLivedTasks
public boolean prefersShortLivedTasks()(Code)
	This task executor prefers short-lived work units.

setDelay
public void setDelay(int delay)(Code)
	Set the delay to use for scheduling tasks passed into the `execute` method. Default is 0. Parameters: delay - the delay in milliseconds before the task is to be executed

setTimer
public void setTimer(Timer timer)(Code)
	Set the Timer to use for this TimerTaskExecutor , for example a shared Timer instance defined by a TimerFactoryBean . If not specified, a default Timer instance will be used. Parameters: timer - the Timer to use for this TimerTaskExecutor (may be `null`) See Also: TimerFactoryBean

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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